Founded in 1865, DAP offers a broad assortment of easy-to-use expanding foam sealants and professional spray foam insulation products designed to increase comfort, safety and efficiency in homes and commercial properties. DAP is a leading manufacturer and supplier of caulks, sealants, foams, adhesives, and patch and repair products with a history of first-to-market innovations for professional contractors, remodelers and do-it-yourselfers.